Vacuum-sealing machine



Feb., 27, 1923. l 1,446,594

c. STADLER VACUUM SEALING- MACHINE Filed Dec. 29, 1921 5 sheets-sheet 1 Feb. 27, )1923, Y* v l lb-Gg CS1-ADLER VACUUM SEALING MACHINE Filed peo, 29, 1921 5 sheets-sheet rs transmission shalt 1S and loose upon said shalt is a wheel i9 provided with a clutch member 20 adapted Jrior releasable engagement with a clutch member' Y2l keyed upon the shaft 18, said clutch members beine` yieldingly retained in engaged relation by the abutting springr 22 that encircles the shait and abats the sha't collar 23.

The clutch member 2l is formed with an irregular groove to receive the lower end ot a pitinan 24 arranged in guides 25, et the framework, said pitrnan being` yieldingly retained out of engagement with the clutch member 2l by the encircling spring' 26 and collar 27, the upper end oit said pitinan being` intermittently depressed by the periphery oi a cam 28 tast upon a transmission shat't 2J, journaleifl in a bearing 39 of the framework l, which shaft has `Valso fast thereupon a pulley 3l connected to a pulley 32, ot' the drive shaft, by the belt 33, the pulley 31|. being` one-halt the diameter o'i the pulley 32 so that the transmission shaft 29 makes tivo revolutions to each revolution ot the drive shaft 13. Fast upon the shaft 29 another cam 231i the periphery of which intermittently depresses a pitnainfa arranged in guides 3G oi" the ii'rameivork, said pitinan having fast thereupon a casting; 37 separated trom one of the guides 236 by an eX- pansion spring 3S whereby said Vpiston is' yieldingly retained in a predetermined position with its upper end always in contact with the cani 34:. The' casting 3T is formed with an arm portion 89 that engages the electric solderer l-O, the stem il ot which extends into the vacuum chamber d and is provided with the tip 4t2, an expansion spring t3 encircling said stein abuts the vacuumvl chamber and an annular shoulder dit formed upon the solderer to yieldingly retain the same in raised position relative to the vacuum chamber.

'A connecting rod Ll5 is connected, olf center, to the wheel 199 said rod being; pivotally connected also to aslide rod 4G adapted to reciprocate in a bearing* il? ailixed to the vacuum chamberT said rod i6 being connected by a link 48 to the slide rods Ll9 50 which rods extend longitudinally ot the vacuum chamber, the rod 119 being disposed above said chamber and sliding in bearings 51, arranged upon the chambers 2, $3 and the rod 5() being disposed beneath the vacuum chamber and slidiiigr in a bearing- 5% de pending' troni said chamber, and, thm-ugh a depending;` boxing;- 53 carried by the casing,V A linkr 54 is made tast to the slide rod 50 Within the boxing` 5B and extends up through an elongated perforation 55 in the vacuum chamber and terminates in an integral sliding' plate 55 that reciprocates upon'the base of the vacuum chamber as the Wheel 19 rotates. The link 48 While made fast to the slide rod 4:9 slides loose vthat extends into a sn'iall perforation 623 formed in another and wider sliding;` bar G-t,

the lateral edges of which are Lgrooved and supported upon the spaced stationary rails G5, 6G between which the slide bar 56 ex- Y tends; said slide bar oil-being; termed with a plurality ot elongated perforations 6T and in each of said perforations 67 is a trigger (S3 tulcrunied upon a pin G9 thatJ connects the sides of the perforated portions et the bar. Each trigger is formed with a wide end and with a pointed end 7l, the trigger being;` so fulorumed upon its pin 69 that the Wide end 70 has a tendency to move or gravitate downwardly or toward the base ot the vacuum chamber. The slide bar 56 is formed With a plurality oit upf ending` lugs 72 disposed beneath the pointed ends ol the several triggers and capable ot insuring' positive operation oit' the same in a. manner to be hereinafter fully described. Spaced away 'ffom the rails 65, 66 arethe recessed members 7% 73 of a runway that extends substantially from end to end of the vacuum chamber and that supports the cans 75 under operation in such manner that -the base of each can clears the upper face of the slide bar 64.

Referring again to the slide rod 49 the same has tast thereuponthe reach bars 76, 77, the iorrner ot which is provided With guide rods 78 that reciprocate in guide bearings 79' arranged upon the receiving` charnber 2, and the latter .is provided with guide rods S0 that reciprocate in similar guide bearings 8l arranged upon the discharge chamber 3, said guide rods '.78 beine 'termed with the ln'anclies 82 that carry the shoes 8?. 93H disposed in alignment with ythe ports 5 of? the chamber 2; andthe ,euide ro ls 90 beingtorined with the branches 94 beine formed with shoes disposed in aligrninent with the ports 5 of the chamber 3, ne said slide rod 49 is provided at one end with the depending; link S6 that carries the push rod ST that entends into the small perforation 5" `,termed in the longitudinal central portion ol" the receiving chamber.

ln Voperation the cans 75 are place/il upon the work table 558 and are then manually placed by an attendant, one at a time, alter nately before the shoes 83 and so that the cans will be placed alternately in'oppo site ends ot the receiving chamber, first in one and then in the other et the ports 7, 8 ot the piston 6. lt will be noted that as the shatt 13 rotates the piston 6 is stopped for aperiod ot one-sixth of a shaft-revolution on each haiti" turn of the cranks l2 and this movement is so arranged :that at one stop of the piston its port 7 is 'aiigned with one port 5, ot' the chamber 2, and the port 8 With the chamberperforation E and one end ot the vacuum chamber; at the next stop ot the piston the port 8 is aligned with one port 5 and the piston port 7 with the perforation 5 and with one end ot the vacnum chamber. Each time the piston moves in the receiving` chamber one can is delivered trom one end ot that chamber tothe center ot the same and one can is removed, hv the push rod 87, into the vacuum chamber. Each complete stroke ot the piston, therefore, delivers tvvo cans to the vacuum chamber.

lilhile the sha'tt '1 3 drives the shait 18 continuonsl)7 intermittent movement, is imparted to the wheel i9 and this movement is so timed bv the cam pitman and clutch 20-w21 i it the said Wheel moves during the period that the pistons in the l;haml'iers Q., 3 are at rest. lililhen the cans are being' ted 'to the machine regularly one can will be del'vered upon the runivav within the vacuum, chamber. hv the push rodL 87. each time the slide bars 5G, G- are pnt in motion, and the cans therebi,7 advanced An intermittent reciprocatingv moven'ient is imparted to the slide bars bv the linlr i8 connected to the slide rod 49. The length of each strobe imparted will be determined by the dis ance betiveen the collars adiustahlv arranged upon the slide bar 50. The greater the distance between the collars, the shorter the stroke. This movement is transmitted from the bar 530 through the linlr 54- that terminates in the plate 56. is this plate moves toward the receiving; chamber 2 it moves the slide bnr by means et the iinn'er 62, it this time the lugs 72 have ridden ben ath the tip end 7l oi the triggers dropping;v the ivide ends thereot into the per- 'torations il, in the bar 56, now therebeneath as shown in Fin. 6. At the end oi this sti-ehe the triggers (i8 are beneath the cans ivhich do not move b v direct contact With the slide rods G4 but rest upon the runn'av 73. 7i, Upon the return stroke ot the slide rods tl e r d 5G is first moved to such a point that onf the slot 1 the shoulders formed h'v the ends 'Gi will ride the wide ends oi the .r .j inse slots, the lues 72 mean ivhile ha vine; been moved tonar'i the trigger vove to the opposite end ot tslot (S3 and impel the rod 64': and triggers forward or toward the chamber 1%, the triggers noiv err-tendini;p above the rod Grand engaging the cans and impellinrr them terr-iard. immediately that the sti-olie is completed in one direction the cam 34- ivill operate to depress the pitman 35 and canse the solderer to function. lt will be .noted at this point that the solderiulcrums, the tin" iii ing tip Will be retained in engagement with the solder, which is droppen cold upon'the can perforation before it is placed in the machine, long enough 'tor the solder to melt.

fitter a can passes from beneath the soldering iron it is moved intermittently to the end of the vacuum chamber and from the same into the discharge chamber upon one ot the ports of the piston '6 and discharged therefrom by the shoe the cans beingr alternately ejected from the ports at. opposite ends ot the chamber 3 npon the table S9.

Vihat is claimed is l. ln a vacuum sealingl machine, a eceiiv ingr chamber', a disch arge chamber, a vacuum chamber comiectingthe first named chambers, a. piston Within said receiv' 1g chamber, a second piston Within said discharge chamber, means `iter feeding` receptacles into said receiving; chamber upon said piston. means for discharging; said receptacles trom said piston into said vacuum chamber, ncans tor imparting an intermittei'it ino\,'e'=.i'ieiit to said receptacles to transport them through said vacuum chamber to and upon saidfsecond piston, soldering' mechanism associated with said vacuum chamber Tfor operation upon said receptacles consecutiveijvr YWhile thevare at rest, and means tor discharging sa' ceptacles from said second piston. i

2. ln a vacuum seali c machine, receiving` cnamber, a discharge Chamb/en a vacnun chamber connecting; the iirst named chaiL bers, means for continuousfiyY and autom: ically feeding` receptacles to said recei chamber, means 'tor consecutively tra-nf ring` said receptacles troni s: chamber, in the order received. to said num chamber, means for conveying ceptacles through said vacuum i into said discharge Chamb@ means Within said vacuum ch ser ope ative upon said receptacles during their period oi transit through said chamber, and means tor' :iutcmaticall;y and consccutively removing,r said receptacles troni said mit charge chamber.

3. in a vacuum sealingV niznhinixr a chan;n ber having' receiving ports :it its ends, a ond chamber havuin disc iris at itsl ends, a vacuum chamber named chambers, a pist named chamber formed align successivelv vith t Y he chamber and with th l i tacles therethrough and into the ports of said second piston, means for applying solder to said receptacles while in transit and means foralternately ejecting said receptacles trom the ports of said second piston.

s. in a vacuum sealing machine, a chamber having receiving ports at its ends, a second chamber having discharge ports at its ends, Aa "*acuum chamber registering with the aforos id chambers between their terminal ports, pistons within said chambers and formed respectively with ports adapted to register alternately with the terminal ports of their chambers and with said vacuum chamber, driving mechanism for said pistons whereby they are actuated synchronously Yand intermittently, means for alternately feeding receptacles into the ports of one of saidpistons, means for automatically and consecutively discharging said receptacles from said piston into said vacuum chamber, means for conveying said r ccptacles through said vacuum chamber and into the ports of the second piston, ineans for consecutively discharging said receptacles from said second p-iston ports through the ports of said second chamber, and soldering means for said receptacles operative thereupon while they are in transit through said vac-uum chamber.

5. lin a vacuum sealing machine, a receptacle receiving chamber having` ports at each of `its ends, a receptacle discharge chamber having ports at cac-h of its ends, a vacuum chamber registering with the aforesaid chambers at points midway lfietween their terminalports, a conveyor within said vacuum chamber having an intermittent motion, a piston wit-hin said receiving chamber having ports adapted to register alternately with the terminal ports and with said vacuum chamber, a similar piston within said discharge chamber, means for automatically feeding receptacles alternately to the ports of said first piston through the terminal ports of said receiving` chamber, means for successively and automatically discharging said receptacles upon said conveyor whereby they are carried to and discharged upon said second piston, means vfor solderingvpsaid receptacles in transit, and means for successliding rod arranged upon said rails,'a second perforate sliding rod beneath the first named slide rod and between said rails, a drive shaft, transmission mechanism for adjustably transmitting an intermittent reciprocating movement from said drive shaft to said second slide rod, means connecting said slide rods for transmitting a predetermined movement. from the second to the irst slide rod, triggers carried by said first slide rod in the perforations thereof for partial disposition in the perforations of said second slide rod at predetermined periods, pistons within said receiving and discharge chambers, said pistons being formed with ports Vadapted to register alternately with the end ports of said chambers and with vsaid vacuum chamber, connection between said pistons and said drive shaft whereby said pistons receive an intermittent motion synchronously, shoes for said feeding receptacles alternately to the ports of one of said pistons through'the terminal ports of said receiving chamber, shoes for discharging the receptacles from the ports of said piston and from the ports ofthe piston in said discharge chamber simultaneously, the receptacles from the first named piston being disposed upon said rrunway for engagement consecutively with the said `triggers, and soldering means for said receptacles between their periods of motion over said runway.

ln testimony that I claim the foregoing as my own I have hereto aflixcd my signature in the presence of two rsubscribing witnesses.

CHARLES STADLER. Vitnesses:

, FRANK KosHoRosiri,

C. L. Oscoop. 

